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Boston councilors question NStar over outages, call for stricter oversight

Members express frustration after two power outages

The utility NStar defended its performance in the face of sharp questioning from Boston councilors Friday, rejecting calls for stricter oversight spurred by a massive power outage in March.

Councilors voiced frustration with NStar over the Back Bay outage on March 13, which left thousands without power for two days and cost businesses millions of dollars, and raised doubts about the system’s reliability following another outage this month.

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